Europium-containing ionic liquids and crystal complexes based on   phosphine oxides

doi:10.1016/j.poly.2016.06.008

CORC > 北京大学 > 化学与分子工程学院

	Europium-containing ionic liquids and crystal complexes based on phosphine oxides
	Liu, Haiwang ; Deng, Chuandong ; Chen, Qingde ; Shen, Xinghai
刊名	POLYHEDRON
	2016
关键词	Europium Phosphine oxides Ionic liquids Single crystal Bis(trifluoromethylsulfonyl)imide anion LANTHANIDE NITRATE COMPLEXES TRIPHENYLPHOSPHINE OXIDE THIOCYANATE COMPLEXES EXTRACTION BEHAVIOR MAGNETIC-PROPERTIES TEMPERATURE SEPARATION CATIONS COORDINATION MECHANISM
DOI	10.1016/j.poly.2016.06.008
英文摘要	We synthesized two Eu-containing ionic liquids (ILs) [Eu(TOPO)(4)(NO3)(2)]NTf2 and [Eu(TBPO)(4)(NO3)(2)]NTf2, and a crystal [Eu(TPhPO)(4)(NO3)(2)]NTf2. In these complexes, TOPO (Tri-n-octylphosphine oxide) and TBPO (Tri-n-butylphosphine oxide) coordinate with Eu3+ constituting the cations, while NTf2- (bis(trifluoromethylsulfonyl)imide anion) acts as the counter anion. The crystal structure of [Eu(TPhPO)(4)(NO3)(2)]NTf2 NTf2 showed the details of the coordinated condition. The infrared spectra of all the complexes exhibited some typical features of the phosphine oxides and two bidentate nitrates. [Eu(TPhPO)(4)(NO3)(2)](+) (R = octyl and butyl) were proved to exist in the C2H2Cl2 solutions by P-31 NMR of [Eu(TPhPO)(4)(NO3)(2)]NTf2 and [Eu(TBPO)(4)(NO3)(2)]NTf2. The luminescence emissions also gave information about the same coordination environments. Thermogravimetric analyses (TGA) indicated that the NTf2- group determined the decomposition temperatures of the three complexes. These complexes are the first tetra-phosphine oxide complexes constituted by Eu(NO3)(3) and phosphine oxides in the presence of NTf2-. The structural difference between [Eu(TRPO)(4)(NO3)(2)]NTf2 in this work and Eu(TRPO)(3)(NO3)(3) formed in traditional organic solvent can help understand that new extraction species may exist in the NTf2--based IL extraction system different from those in the normal organic solvent extraction system. (C) 2016 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China [91226112, 21471008]; SCI(E); ARTICLE; xshen@pku.edu.cn; 309-317; 117
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/457485]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liu, Haiwang,Deng, Chuandong,Chen, Qingde,et al. Europium-containing ionic liquids and crystal complexes based on phosphine oxides[J]. POLYHEDRON,2016.
APA	Liu, Haiwang,Deng, Chuandong,Chen, Qingde,&Shen, Xinghai.(2016).Europium-containing ionic liquids and crystal complexes based on phosphine oxides.POLYHEDRON.
MLA	Liu, Haiwang,et al."Europium-containing ionic liquids and crystal complexes based on phosphine oxides".POLYHEDRON (2016).